class Point extends egret.Point{
	private _dir:number = 0;
	constructor(dir:number = 0,x:number = 0,y:number = 0){
		super();
		this.dir = dir;
		this.x = x;
		this.y = y;
	}
	
	set dir(d:number){
		this._dir = d;
	}

	get dir():number{
		return this._dir;
	}
}
